CN109819189B - Recording and video recording device for foreign language teaching - Google Patents
Recording and video recording device for foreign language teaching Download PDFInfo
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Abstract
The invention discloses a recording and videotaping device for foreign language teaching, which integrates and processes local videotaping content to the lower part or one side of the whole videotaping content so as to place the whole videotaping content and the local videotaping content in the same display screen, thus, the content of the teacher's key explanation and the global content can be displayed together, a video learner can learn more intuitively, and the self-learning is clearer; when the video recording is carried out, the video recording method can be used for carrying out key capture on the content explained by the teacher, the capture mode is simple and reliable, the automatic targeted video recording of the teaching content can be realized, and the automatic video recording effect is realized; the invention is convenient for detecting the content explained by the teacher, and the setting of coarse adjustment and fine adjustment can ensure that the camera can accurately and rapidly adjust the angle and ensure the video recording effect.
Description
Technical Field
The invention relates to the technical field of sound recording for foreign language teaching, in particular to a sound recording and video recording device for foreign language teaching.
Background
At present, for foreign language teaching, video teaching is applied more and more, and video teaching has a plurality of advantages, especially for some self-learners, the cost is low, and the time is free. However, although the video for teaching a teacher is generally a mode combining audio and video, although the development of high-definition camera technology is continuous, requirements can be basically met, for some key words, words or key sentences, during explanation, the current camera shooting is generally a long shot, so that during explanation, some key words, words or sentences, especially the positions where teachers are key to analyze, are difficult to clearly and magnify, the long shot is difficult to record in an omnidirectional video, and if a lens is zoomed in, the whole view cannot be seen, and for video learning, the video can be lost, and the understanding of the whole context is affected.
Therefore, the present invention provides a recording and videoing apparatus for foreign language teaching to solve the problems set forth in the background art.
Disclosure of Invention
The present invention is directed to provide a recording and/or video apparatus for foreign language teaching, which solves the above-mentioned problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the recording and video device for foreign language teaching comprises an intelligent teaching board, a main video camera mechanism, an auxiliary video camera mechanism, a sound recorder, an image processor and a storage device, wherein the main video camera mechanism, the auxiliary video camera mechanism and the sound recorder are all connected with the image processor, and the image processor is connected with the storage device; it is characterized in that the preparation method is characterized in that,
the main video camera mechanism is responsible for carrying out integral video recording on the content on the whole intelligent teaching board for English teaching, the auxiliary video camera mechanism is responsible for carrying out local video recording on the key content of key explanation, the image processor is responsible for integrating the camera shooting content of the main video camera mechanism and the auxiliary video camera mechanism and integrating the local video recording content to the lower part or one side of the integral video recording content, so that the integral video recording content and the local video recording content are placed in the same display screen;
be provided with the location detection mechanism who catches the location to the key content of key explanation on the intelligence teaching board, location detection mechanism can discern the detection according to the teacher to the content positional information of the key explanation of instruction, and feed back in supplementary video camera shooting mechanism, supplementary video camera shooting mechanism can be according to this supplementary video camera shooting mechanism's of feedback identification position real-time adjustment angle of making a video recording to the key content of instructing the teacher carries out special seizure.
The positioning detection mechanism comprises a transverse position coordinate detection assembly, a vertical position coordinate detection assembly and a position controller, the transverse position coordinate detection assembly and the vertical position coordinate detection assembly are all in control connection with the position controller, the transverse position coordinate detection assembly can detect and position the transverse coordinate of the indicating position of a teacher on the intelligent teaching board, the vertical position coordinate detection assembly can detect and position the vertical coordinate of the indicating position of the teacher on the intelligent teaching board, and the position controller can control the camera shooting angle of the auxiliary video camera shooting mechanism according to the transverse coordinate and the vertical coordinate.
The transverse position coordinate detection assembly comprises a plurality of longitudinal laser emitting heads and a plurality of longitudinal laser receiving probes, wherein the longitudinal laser emitting heads are arranged on the inner side of the bottom of a transverse frame of the intelligent teaching board, the longitudinal laser receiving probes are arranged on the inner side of the top of the transverse frame of the intelligent teaching board, and each longitudinal laser receiving probe corresponds to the longitudinal laser emitting heads in a one-to-one up-and-down position manner so that the longitudinal laser receiving probes can receive light rays emitted by the longitudinal laser emitting heads; vertical position coordinate detecting element includes a plurality of horizontal laser emission heads and a plurality of horizontal laser receiver probe, wherein, horizontal laser emission head sets up the left side of the vertical frame of intelligence teaching board is inboard, horizontal laser receiver probe sets up the right side of the vertical frame of intelligence teaching board is inboard, and every horizontal laser receiver probe corresponds with horizontal laser emission head position from top to bottom one by one, so that make horizontal laser receiver probe can receive the light of horizontal laser emission head transmission, when the teaching personnel adopt the teaching rod or point out key point to key content, teaching rod or finger shelter from light and realize the detection to horizontal and vertical coordinate.
The mechanism of making a video recording of main video includes the main camera, the place ahead at intelligent teaching board is fixed to the main camera, supplementary video camera mechanism includes mounting panel, horizontal slide rail, locking bolt, regulation slide, angle adjustment subassembly and supplementary camera, wherein, the installation is provided with the horizontal slide rail that the level extends on the bottom of mounting panel, the cover is established to slide and is provided with the regulation slide on the horizontal slide rail, be provided with the locking bolt that carries out locking to it on the regulation slide, the bottom of adjusting the slide adopts angle adjustment subassembly is connected and is provided with supplementary camera, the angle of making a video recording of supplementary camera by angle adjustment subassembly drives the regulation.
The angle adjusting component comprises a fixing plate, a transverse angle adjusting component and a longitudinal angle adjusting component, wherein the transverse angle adjusting component is installed on the fixing plate, and the longitudinal angle adjusting component is installed at the output end of the transverse angle adjusting component.
The transverse angle adjusting assembly and the longitudinal angle adjusting assembly are identical in structure and comprise fine adjusting assemblies and coarse adjusting assemblies, and the fine adjusting assemblies are arranged at the output ends of the coarse adjusting assemblies.
The rough adjusting assembly comprises a rough adjusting stepping motor, a rough adjusting gear and a rough adjusting output shaft, wherein the rough adjusting stepping motor is fixedly arranged on the fixing plate, the rough adjusting gear is fixedly arranged at the output end of the rough adjusting stepping motor, the rough adjusting output shaft is rotatably supported on the fixing plate, meshing teeth are arranged at the position of the rough adjusting output shaft, which is in meshing transmission with the rough adjusting gear, and the meshing teeth are in meshing transmission with the rough adjusting gear so as to drive the rough adjusting output shaft to rotate through the rough adjusting stepping motor.
The fine adjustment assembly comprises a fine adjustment output shaft, a fine adjustment stepping motor and a fine adjustment gear, wherein the fine adjustment output shaft is rotatably arranged on the coarse adjustment output shaft, the fine adjustment stepping motor is further arranged on the coarse adjustment output shaft, the fine adjustment gear is arranged at the output end of the fine adjustment stepping motor, the fine adjustment gear is in meshed transmission with fine adjustment teeth outside the fine adjustment output shaft, the fine adjustment output shaft is driven to rotate by the fine adjustment stepping motor, and the longitudinal angle adjustment assembly is arranged between the fine adjustment output shaft and the auxiliary camera.
The gear diameter of the coarse adjustment gear is at least three times the diameter of the fine adjustment gear.
The intelligent teaching board is divided into a plurality of transverse areas and a plurality of longitudinal areas by dividing lines, each transverse area comprises a plurality of longitudinal laser emitting heads, each longitudinal area comprises a plurality of transverse laser emitting heads, the coarse adjustment assembly is responsible for enabling the auxiliary camera to point to the transverse area and the longitudinal area of a required target, and the fine adjustment assembly is responsible for enabling the auxiliary camera to point to the required target coordinate.
Compared with the prior art, the invention has the beneficial effects that:
(1) the local video content is integrated and processed below or on one side of the whole video content, so that the whole video content and the local video content are conveniently arranged in the same display screen, and thus, the contents mainly explained by teachers and the global contents can be displayed together, so that video learners can learn more intuitively and learn more clearly;
(2) when the video recording is carried out, the video recording method can be used for carrying out key capture on the content explained by the teacher, the capture mode is simple and reliable, the automatic targeted video recording of the teaching content can be realized, and the automatic video recording effect is realized;
(3) the invention is convenient for detecting the content explained by the teacher, and the setting of coarse adjustment and fine adjustment can ensure that the camera can accurately and rapidly adjust the angle and ensure the video recording effect.
Drawings
FIG. 1 is a schematic view of a video recorder for foreign language teaching;
FIG. 2 is a schematic view of a video recording angle adjustment structure of the audio and video recording apparatus for foreign language teaching;
fig. 3 is a schematic view of the structure of an angle adjustment assembly in the audio and video recording apparatus for foreign language teaching.
FIG. 4 is a schematic view of an image display structure recorded by the audio/video recording apparatus for foreign language teaching;
Detailed Description
Referring to fig. 1 to 4, in the embodiment of the present invention, the audio recording and video recording apparatus for foreign language teaching includes an intelligent teaching board 1, a main video camera mechanism, an auxiliary video camera mechanism, a sound recorder, an image processor and a storage device, wherein the main video camera mechanism, the auxiliary video camera mechanism and the sound recorder are all connected to the image processor, and the image processor is connected to the storage device; it is characterized in that the preparation method is characterized in that,
the main video camera mechanism is responsible for carrying out integral video recording on the content on the whole intelligent teaching board 1 for English teaching, the auxiliary video camera mechanism is responsible for carrying out local video recording on the key content for key explanation, the image processor is responsible for integrating the camera shooting content of the main video camera mechanism and the auxiliary video camera mechanism, and integrating the local video recording content to the lower part or one side of the integral video recording content, so that the integral video recording content and the local video recording content are placed in the same display screen; be provided with the location detection mechanism who catches the location to the key content of key explanation on the intelligence teaching board 1, location detection mechanism can discern the detection according to the teacher to the content positional information of the key explanation of instruction, and feed back in supplementary video camera shooting mechanism, supplementary video camera shooting mechanism can be according to this supplementary video camera shooting mechanism's of feedback identification position real-time adjustment angle of making a video recording of location detection mechanism to the key content of instructing the teacher to catch specially.
In this embodiment, location detection mechanism includes horizontal position coordinate determine module, vertical position coordinate determine module and position controller, horizontal position coordinate determine module, vertical position coordinate determine module all with position controller control connection, horizontal position coordinate determine module can detect the location to the horizontal coordinate of teacher's instruction position on intelligent teaching board, vertical position coordinate determine module can detect the location to the vertical coordinate of teacher's instruction position on intelligent teaching board, position controller can be according to horizontal coordinate and vertical coordinate control the supplementary video angle of making a video recording of mechanism.
As a preferred embodiment, the transverse position coordinate detecting assembly includes a plurality of longitudinal laser emitting heads 3 and a plurality of longitudinal laser receiving probes 2, wherein the longitudinal laser emitting heads 3 are disposed on the inner side of the bottom of the transverse frame of the intelligent teaching board 1, the longitudinal laser receiving probes 2 are disposed on the inner side of the top of the transverse frame of the intelligent teaching board 1, and each longitudinal laser receiving probe 2 corresponds to a longitudinal laser emitting head 3 in a one-to-one up-down position, so that the longitudinal laser receiving probes 2 can receive light emitted by the longitudinal laser emitting heads 3; vertical position coordinate detecting element includes a plurality of horizontal laser emission heads 5 and a plurality of horizontal laser receiver probe 4, wherein, horizontal laser emission head 5 sets up the left side of the vertical frame of intelligence teaching board 1 is inboard, horizontal laser receiver probe 4 sets up the right side of the vertical frame of intelligence teaching board 1 is inboard, and every horizontal laser receiver probe 4 corresponds with horizontal laser emission head 5 position from top to bottom one-to-one, so that make horizontal laser receiver probe can receive the light of horizontal laser emission head transmission, when the teaching personnel adopt the teaching rod or the finger is key to point out to the key content, teaching rod or finger shelter from light and realize the detection to horizontal and vertical coordinate.
As a better embodiment, the main video camera shooting mechanism comprises a main camera, the main camera is fixed in the front of the intelligent teaching board 1, the auxiliary video camera shooting mechanism 12 comprises an installation plate 7, a horizontal sliding rail 8, a locking bolt 9, an adjusting sliding seat 10, an angle adjusting component 11 and an auxiliary camera 20, wherein the horizontal sliding rail 8 extending horizontally is installed and arranged on the bottom of the installation plate 7, the adjusting sliding seat 10 is arranged on the horizontal sliding rail 8 in a sleeved mode, the locking bolt 9 locking the horizontal sliding rail 10 is arranged on the adjusting sliding seat 10, the angle adjusting component is connected and arranged with the auxiliary camera 20, and the camera shooting angle of the auxiliary camera 20 is adjusted by the angle adjusting component in a driving mode.
The angle adjusting assembly comprises a fixing plate 13, a transverse angle adjusting assembly and a longitudinal angle adjusting assembly 19, wherein the transverse angle adjusting assembly is installed on the fixing plate 13, and the longitudinal angle adjusting assembly 19 is installed at an output end of the transverse angle adjusting assembly. The transverse angle adjusting component and the longitudinal angle adjusting component 19 have the same structure and comprise a fine adjusting component and a coarse adjusting component, and the fine adjusting component is arranged at the output end of the coarse adjusting component.
In this embodiment, the coarse adjustment assembly includes a coarse adjustment stepping motor 14, a coarse adjustment gear 15 and a coarse adjustment output shaft 16, wherein the coarse adjustment stepping motor is fixedly disposed on the fixing plate 13, the coarse adjustment gear 15 is fixedly disposed at an output end of the coarse adjustment stepping motor 14, the coarse adjustment output shaft is rotatably supported on the fixing plate, engaging teeth 22 are disposed at a position of the coarse adjustment output shaft 16 in engagement transmission with the coarse adjustment gear, and the engaging teeth are in engagement transmission with the coarse adjustment gear so as to drive the coarse adjustment output shaft to rotate through the coarse adjustment stepping motor.
The fine adjustment assembly comprises a fine adjustment output shaft 18, a fine adjustment stepping motor 17 and a fine adjustment gear 21, wherein the fine adjustment output shaft 18 is rotatably arranged on the coarse adjustment output shaft 16, the fine adjustment stepping motor 17 is further arranged on the coarse adjustment output shaft 16, the fine adjustment gear 21 is arranged at the output end of the fine adjustment stepping motor 17, the fine adjustment gear 21 is in meshing transmission with fine adjustment teeth outside the fine adjustment output shaft 18, the fine adjustment output shaft 18 is driven to rotate through the fine adjustment stepping motor 17, and the longitudinal angle adjustment assembly 19 is arranged between the fine adjustment output shaft 18 and the auxiliary camera 20. Further, the gear diameter of the rough adjusting gear 15 is at least three times as large as the diameter of the fine adjusting gear 21.
In order to facilitate adjustment, the intelligent teaching board 1 is divided into a plurality of transverse areas and a plurality of longitudinal areas by dividing lines 6, each transverse area comprises a plurality of longitudinal laser emitting heads 3, each longitudinal area comprises a plurality of transverse laser emitting heads, the coarse adjustment component is responsible for enabling the auxiliary camera to point to the transverse area and the longitudinal area of the required target, and the fine adjustment component is responsible for enabling the auxiliary camera to point to the coordinates of the required target.
The local video content is integrated and processed below or on one side of the whole video content, so that the whole video content and the local video content are conveniently arranged in the same display screen, and thus, the contents mainly explained by teachers and the global contents can be displayed together, so that video learners can learn more intuitively and learn more clearly; when the video recording is carried out, the video recording method can be used for carrying out key capture on the content explained by the teacher, the capture mode is simple and reliable, the automatic targeted video recording of the teaching content can be realized, and the automatic video recording effect is realized; the invention is convenient for detecting the content explained by the teacher, and the setting of coarse adjustment and fine adjustment can ensure that the camera can accurately and rapidly adjust the angle and ensure the video recording effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (9)
1. The recording and video device for foreign language teaching comprises an intelligent teaching board (1), a main video camera mechanism, an auxiliary video camera mechanism, a sound recorder, an image processor and a storage device, wherein the main video camera mechanism, the auxiliary video camera mechanism and the sound recorder are all connected with the image processor, and the image processor is connected with the storage device; it is characterized in that the preparation method is characterized in that,
the main video camera mechanism is responsible for carrying out integral video recording on the content on the whole intelligent teaching board (1) for English teaching, the auxiliary video camera mechanism is responsible for carrying out local video recording on the key content for key explanation, the image processor is responsible for integrating the camera shooting content of the main video camera mechanism and the auxiliary video camera mechanism and integrating the local video recording content to the lower part or one side of the integral video recording content, so that the integral video recording content and the local video recording content are placed in the same display screen;
the intelligent teaching board (1) is provided with a positioning detection mechanism for capturing and positioning key contents of key explanation, the positioning detection mechanism can identify and detect the indicated key explanation content position information according to a teacher and feed back the information to the auxiliary video camera shooting mechanism, and the auxiliary video camera shooting mechanism can adjust the camera shooting angle of the auxiliary video camera shooting mechanism in real time according to the feedback identification position of the positioning detection mechanism so as to specially capture the key contents indicated by the teacher;
the positioning detection mechanism comprises a transverse position coordinate detection assembly, a vertical position coordinate detection assembly and a position controller, the transverse position coordinate detection assembly and the vertical position coordinate detection assembly are all in control connection with the position controller, the transverse position coordinate detection assembly can detect and position the transverse coordinate of the indicating position of a teacher on the intelligent teaching board, the vertical position coordinate detection assembly can detect and position the vertical coordinate of the indicating position of the teacher on the intelligent teaching board, and the position controller can control the camera shooting angle of the auxiliary video camera shooting mechanism according to the transverse coordinate and the vertical coordinate.
2. The audio and video recording device for foreign language teaching according to claim 1, wherein the transverse position coordinate detecting assembly comprises a plurality of longitudinal laser emitting heads (3) and a plurality of longitudinal laser receiving probes (2), wherein the longitudinal laser emitting heads (3) are arranged at the inner side of the bottom of the transverse frame of the intelligent teaching board (1), the longitudinal laser receiving probes (2) are arranged at the inner side of the top of the transverse frame of the intelligent teaching board (1), and each longitudinal laser receiving probe (2) corresponds to a longitudinal laser emitting head (3) in a one-to-one up and down position so that the longitudinal laser receiving probes (2) can receive the light emitted by the longitudinal laser emitting heads (3); vertical position coordinate determine module includes a plurality of horizontal laser emission heads (5) and a plurality of horizontal laser receiving probe (4), wherein, horizontal laser emission head (5) set up the left side of the vertical frame of intelligence teaching board (1) is inboard, horizontal laser receiving probe (4) set up the right side of the vertical frame of intelligence teaching board (1) is inboard, and every horizontal laser receiving probe (4) and horizontal laser emission head (5) position-to-position from top to bottom one by one correspond, so that make horizontal laser receiving probe can receive the light of horizontal laser emission head transmission, when the teaching personnel adopt teaching rod or finger to point out to important content, teaching rod or finger shelter from light and realize the detection to horizontal and vertical coordinate.
3. The video recorder for foreign language teaching according to claim 2, wherein said main video camera means includes a main camera, the main camera is fixed in front of the intelligent teaching board (1), the auxiliary video camera mechanism (12) comprises a mounting plate (7), a horizontal sliding rail (8), a locking bolt (9), an adjusting sliding seat (10), an angle adjusting component (11) and an auxiliary camera (20), wherein the bottom of the mounting plate (7) is provided with a horizontal sliding rail (8) which extends horizontally, an adjusting slide seat (10) is sleeved and arranged on the horizontal slide rail (8) in a sliding way, a locking bolt (9) for locking the adjusting slide seat (10) is arranged on the adjusting slide seat, the bottom of the adjusting slide seat is connected with an auxiliary camera (20) by adopting the angle adjusting component, the shooting angle of the auxiliary camera (20) is driven and adjusted by the angle adjusting component.
4. The video and audio recording device for foreign language teaching according to claim 3, wherein said angle adjusting means comprises a fixing plate (13), a transverse angle adjusting means and a longitudinal angle adjusting means (19), wherein said transverse angle adjusting means is mounted on said fixing plate (13), and said longitudinal angle adjusting means (19) is mounted on an output end of said transverse angle adjusting means.
5. The foreign language teaching audio and video recording device according to claim 4, wherein the horizontal angle adjusting means and the vertical angle adjusting means (19) are identical in structure and each include a fine adjusting means and a coarse adjusting means, and the fine adjusting means is provided at an output end of the coarse adjusting means.
6. The foreign language teaching recording and video recording device according to claim 5, wherein the coarse adjustment component comprises a coarse adjustment stepping motor (14), a coarse adjustment gear (15) and a coarse adjustment output shaft (16), wherein the coarse adjustment stepping motor is fixedly arranged on the fixing plate (13), the coarse adjustment gear (15) is fixedly arranged at the output end of the coarse adjustment stepping motor (14), the coarse adjustment output shaft is rotatably supported on the fixing plate, and the position of the coarse adjustment output shaft (16) meshed with the coarse adjustment gear is provided with meshing teeth (22) meshed with the coarse adjustment gear for transmission, so that the coarse adjustment output shaft is driven to rotate by the coarse adjustment stepping motor.
7. The video and audio recording device for foreign language teaching according to claim 6, wherein the fine adjustment assembly comprises a fine adjustment output shaft (18), a fine adjustment stepping motor (17), and a fine adjustment gear (21), wherein the fine adjustment output shaft (18) is rotatably disposed on the coarse adjustment output shaft (16), the fine adjustment stepping motor (17) is further disposed on the coarse adjustment output shaft (16), the fine adjustment gear (21) is disposed at an output end of the fine adjustment stepping motor (17), the fine adjustment gear (21) is in meshed transmission with fine adjustment teeth outside the fine adjustment output shaft (18), the fine adjustment output shaft (18) is driven to rotate by the fine adjustment stepping motor (17), and the longitudinal angle adjustment assembly (19) is disposed between the fine adjustment output shaft (18) and the auxiliary camera (20).
8. The video recorder for foreign language teaching according to claim 7, wherein the gear diameter of said rough adjusting gear (15) is at least three times as large as the diameter of said fine adjusting gear (21).
9. The video and audio recording apparatus for foreign language teaching according to claim 7, wherein said intelligent teaching board (1) is divided into a plurality of horizontal regions and a plurality of vertical regions by dividing lines (6), each horizontal region includes a plurality of vertical laser emitting heads (3), each vertical region includes a plurality of horizontal laser emitting heads, said coarse tuning means is responsible for pointing the auxiliary camera to the horizontal region and the vertical region of the desired target, and said fine tuning means is responsible for pointing the auxiliary camera to the coordinates of the desired target.
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